
Version 2.1.0 of the DFDL4S Java and C++ Libraries has been released and can be downloaded here.
DFDL4S is a generic binary data binding library written in Java and based on the Data Format Description Language (DFDL). DFDL++ provides the same functionality exposing a native C++ API. See more details here.
The following is a summary of the changes in version 2.1.0.
New Functionality and Improvements
- Java and C++ API extended to handle time values following CCSDS Time Code Formats
- Improve exception handling in DFDL4S API
Bugfixes
- Fixed crash when a directory is passed as schema location
- Incorrect handling of occursCount when expression evaluates to 0
- Root element ignored in absolute path evaluation
- Fixed crash when document outlives library instance (C++)
- Fixed crash in CreateNewDocumentExample when the output file already exists
Release Notes for can be found here.
User registration is required. Please find detailed instructions here.
OpenSF v4.2.1 has been released and can be downloaded here.

User registration is required. Please find detailed instructions here.
Corrections
- Fix openSF moving parameter elements around in configuration files
- Fix ParameterEditor bug that caused some parameters to be renamed on saving
All Release Notes are available here
Version 2.6.1 of the S2G Data Viewer has been released and can be downloaded here.
Release Notes are available here.
User registration is required. Please find detailed instructions here.

New Features
- Move icon from main toolbar to Hex panel toolbar (S2G-AN-248)
Corrections
- Running the report on a TF file containing idle frames results in an empty Summary section (S2G-AN-264)
- Transformation TF –> ISP: not correct for TF file including Idle Frames (S2G-AN-265)
- Not possible to discard mission previously added through “Mission Configuration” Import mechanism (S2G-AN-276)
- The feature Tools –> Show Report does not generate any output (S2G-AN-277)
New Mission Schemas
- CRISTAL X-Band (no CFDP encapsulation)
OpenSF v4.2.0 has been released and can be downloaded here.

User registration is required. Please find detailed instructions here.
New Features & Improvements
- Display simulation execution progress in multi-execution table
- Parameter Editor no longer reorders parameters by default
- Simulation post-processing tools are launched concurrently
- When a module fails, keep running the simulation as far as possible
- Generation values for iteration arithmetic sequences are now persistent
- openSF UI responsiveness improvements in multi-executions
- Show a browse button for scalar FILE parameters in openSF
Corrections
- The iterations table no longer allows custom values
- Simulation editor side panel no longer blocks most UI interactions
- Parameter validity text improved
- Clearer error message if mpstat is not installed (Linux)
- The simulation edition view is no longer reloaded on save
- Wayland issues workaround applied by default in menu/desktop launchers (Linux)
- Fix error message not being shown by openSF on failed database creation and import
- openSF no longer swallows parameters with “TimeConfiguration” in the name
- Multi-execution table no longer scrolls back to the top on its own
- Opening an element multiple times now focuses its tab instead of opening a new one
- Closing a simulation execution view opened from a multi-execution no longer offers aborting it
- Fix openSF and PE issues with XML processing instructions before the root element
- Status of I/O nodes in simulation execution graphical view is refreshed more readily
- ParameterEditor no longer duplicates a parameter when renaming it
- openSF no longer displays the GCF parameters ungrouped
- openSF and PE now remove the deprecated “value” attribute when writing configuration files
- Fix the simulation results log table filtering and sorting functionalities
- openSF now launches modules with the working directory specified by the E2E-ICD
All Release Notes are available here
White Paper on E2E mission performance simulation chains (v1.2) has been updated and can be downloaded here.
This white paper captures lessons learned in the procurement and technical development of End-to-End mission performance simulation chains for Earth Observation. These tool chains includes simulation of both the target scene and the space segment, as well as the Level 1 and Level 2 processing.
The document provides recommendations, templates and reference to tools implementing common practices addressing the lessons learned.